Gs Yuasa International Ltd.

Lithium Energy Japan

Wataru Mashiko

Noriyoshi Munenaga

Taku Nakamura

Hiroshi Tasai

Takashi Akimoto

Takeshi Kawahara

Satoru Kawakami

Motoshi Kiribayashi

Mitsunori Maeda

Hiroyasu Kawada

Tomohiro Imamura

A connecting body for electrically connecting a power generating element and an electrode terminal positioned on a surface of a device container for housing the power generating element, the connecting body including: a plate portion positioned on the surface of the device container; and a protruding portion being in a position on a surface of the plate portion and displaced from a position of the electrode terminal, and having a tip end protruding to face the power generating element and a base with a peripheral edge surrounded with a principal face of the plate portion.

Connecting body, manufacturing method of connecting body, electric storage device, and manufacturing method of electric storage device

A battery comprises: a container including a bottom portion, long-sidewall portions each standing on a corresponding one of longer side portions of the bottom portion, short-sidewall portions each standing on a corresponding one of two shorter side portions of the bottom portion, and a welded portion in which portions of a flat plate are mutually welded; an electrode assembly housed in the container; an electrode terminal; and a lid closing the container, the container having a cuboid shape, the bottom portion being rectangular, the long-sidewall portions each being rectangular, the short-sidewall portions each being rectangular, the flat plate being made of metal and being folded, and the portions of the flat plate being mutually abutting or overlapping.

Method of manufacturing battery, and battery

An energy storage device includes an electrode assembly, a container that contains the electrode assembly therein, a metallic cover member that closes the opening of the container and has a first fitting portion, and a current collector having a second fitting portion that is fitted to the first fitting portion in a fitted state. Thus, the compact energy storage device having a large capacity can suppress the positional deviation between the cover member and the current collector.

Energy storage device

An object of the invention is to provide a lead acid battery having a liquid surface sensor () installed to a liquid surface sensor installation portion () on a top face of a container lid (), an electronic circuit board () contained in a recessed portion () on the top face of the container lid (), terminal connecting conductors () connecting the electronic circuit board () to terminals (), and a liquid surface sensor connecting conductor () connecting the liquid surface sensor () to the electronic circuit board (), preventing from catching on an object on the top face of the container lid () by insert molding the terminal connecting conductors () and the liquid surface sensor connecting conductor () in the container lid (), preventing the terminal connecting conductors () and the liquid surface sensor connecting conductor () from being corroded by an electrolyte solution even if the electrolyte solution is spotted on the top face, and improving the outer appearance.

Lead acid battery with liquid sensor in lid

Growing community of inventors

Ritto, Japan

Wataru Mashiko